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ASTM C467-97(2008)

Historical Reaffirmation

Standard Classification of Mullite Refractories

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1.1 This classification covers refractory products consisting predominantly of mullite (3 Al2O3·2 SiO2) crystals that are formed by either converting any of the sillimanite group of minerals, or synthesizing from appropriate materials in a melt or sinter process.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.


The mullite content of an alumina-silica refractory material has an important influence on volume stability, load bearing properties, and its satisfactory use in refractory applications. This classification is considered useful for purchase specifications and quality control.

SDO ASTM: ASTM International
Document Number C467
Publication Date Aug. 1, 2008
Language en - English
Page Count 2
Revision Level 97(2008)
Supercedes
Committee C08.92
Publish Date Document Id Type View
Sept. 1, 2014 C0467-14 Revision
Nov. 10, 1997 C0467-97 Revision
April 1, 2023 C0467-14R23 Reaffirmation
Oct. 1, 2018 C0467-14R18 Reaffirmation
Aug. 1, 2008 C0467-97R08 Reaffirmation
Nov. 10, 1997 C0467-97R02 Reaffirmation